hour-n; 4 Senses

Sense Number 1: 60 minutes

Commentary: hr - a period of time equal to 1/24th of a day

Examples:
The job will take more than one hour.
I'll meet you here in three hours.

Mappings:
WordNet 2.0 Sense Numbers: 1

Sense Number 2: time of day

Commentary: clock time

Examples:
The hour is getting late.
I work best in the late-night hours.
We're going downtown for happy hour today.

Mappings:
WordNet 2.0 Sense Numbers: 2

Sense Number 3: memorable period

Commentary: HOUR[+event] a special or memorable period

Examples:
It was their finest hour.
My hour of triumph lasted only ten minutes.
The hour of thier death came all too soon.

Mappings:
WordNet 2.0 Sense Numbers: 3

Sense Number 4: distance

Commentary: distance measured by the time taken to cover it

Examples:
We live an hour from the airport.
It's just two hours away.

Mappings:
WordNet 2.0 Sense Numbers: 4